It says the flaws in the highly complex model are linked to assumptions made about the effects of low-level clouds and pollution on the climate.

Simply, the coordination complex model accounted for the inner sphere ligands being less prone to dissociate, where a traditional molecule did not.

A great number of parameters in a complex model can be candidates for estimation but not all are estimable.

A reasonably complex model was used to identify fraudulent monthly reports submitted by divisional controllers.

A more complex model will usually always be able to explain the data better, which makes choosing the appropriate model complexity inherently difficult.